Lubricator.



LUBRICATOR.

.APPLICATION FILED MAY ai, |916.

Pat'lted Miu'. 27, 1917.

" clamped between said flange 4 integral with the inner end CHARLES H. BGGIN, or` nnnLANDs, CALIFORNIA.

nmm'rcncronh Specification of Letters Patent.

Patented Mar. 2f?, 19175.

Application filed Mey 31, 1916. Serial No. 190,916.

To all whom t may concern.'

Be it known that I, CHARLES H. BIGGIN, a citizen of the United States, residing at Redlands, in` thehcounty of San Bernardino and State of California, have invented `new and useful Improvements in Lubricators, of which the Vfollowing is a specification.

his invention relates to lubricators.

One of the objects of the inventionis to provide an improved lubricating device which may be attached to the end ol a sha-ft caring over the end of the shaft, and -operated by handr to force a lubricant through the bearing as conditions require.

Another object of the invention is to provide a lubricating device of this character adapted to screw on the cnd of a shaft bearing and provided with means to prevent dirt entering the screw threads between the device and the bearing and causing the device to tighten on the bearing, whereby the device is enabled to be turned freely ont-he bearing and more eflectively to keep the dirt out of the bearing.

Other objects will appear from the fol lowing description.

The invention .is illustrated in the accompanying drawing, forming a part of this specification in which:

Figure l is a longitudinal section of the hub and taclied to said hub.

Fig. 2 is a view of an automobile hub and journal and a modified forni of the lubricator ,attached thereto, the lubricator being shown in section.

Fig. Bis a view of a bearing and another modified form of the lubricatorattached thereto; the lubricator 'being shownl in section.

Referring to Fig. 1 in the drawing, 1 indicates the hub of an automobile wheel, which comprises a. cylindrical hub casing 2, against which the inner ends of the spokes 8 of the wheel abut, 'and an annular :flange of the hub casing, which flange rests against the inside of said spokes. A washer 5 slips over the outer end of the hub casing against the outside of the spokes 3 and the spokes are and journal of an automobile wheel my improved` lubricator which is atby bolts 6 which extend through the plates and nuts 7 which screw on bolts against the flange 4. A-journal 10 on the end of the wheel axle 11 extends into the wheel rotate.

A.thus enabling the on by hand on the 4 and washer 5 the ends of said hub, and an annular flange 12 is provided on the end ofthe axle which flange 1s adapted to rest against the hub flange 4.

Ball bearings 15 andvl are provided be- 60 tween the journal and the hub casing at theinner and outer ends of the journal, respectively, upon which, bearings the hub and The hub and wheelare held on the journal over the outer end of the journal agans't the bearing 16 and a nut 18 which screws on the outer threaded end of the journal against said washer. The -outer end of the hub casing is threaded externally to reeeivea 'i0 lock nut 19 and an internally threaded cap 20, the llock 'nut being adapted *to screw against the inner end of the lcap to lock the cap in the desired position on the end of the hub casing. An inwardly extending annular flange 21 is provided on the lock nut 19 which flange extends over the inner end of theexternal thread on the end of the hub casing and prevents dirt enterin said thread andthe internal cap thread an causing the' cap to tighten on the hub casing, cap to be screwed freely end of the hub casing in either direction and more. effectively keeping dirt out of the bearing. y In operation, thehub is filled with a lubril hard oil and the lubricant is placed within the cap 2O andl the Acap is screwed on the end of the hub casing by cant such as hand, so'that the lubricant completely fills 90 the hub and the cap. The lock nut 19 is then screwed against the end of. the cap so as to lock the cap onthe hub casing. As the wheel'turns on the journal 10, the oil gradually works its. way flange 12 and the hub flange 4 out of the inner end of the hub casing. The lock nut is screwed away from the cap vto free the cap,- and the cap is then screwed inwardly on the' hub casing` so as to force lubricant into the rub and again fill the hub Aand the cap with lubricant. The vlock nut is then screwed against the cap, locking the cap on the hubA casing. As the cap is screwed inwardly on the hub casing, fresh lubricant is forced into the ball bearings and the used lubricant and `such material as may be worn from the. bearings is forced out of the bearings and any material which may have'a tendency to enter the hub from the outside is forced bfi-"5110 tween, the axle flange 12 and hub flange 4 out f l.

of the hub.

by a Washer 17 which fits 65 out lbetween the axle 95 in the .modiiied forni of the luhrieator the cap 20 and ioek nut 1%) are screwed on an externally threadedsieeve which slips over the outer end of the hub and has an annular Harige 25 at its inner end which ilange is secured, as by means of screws Q6 to the hub washer 5. The sieeveis used on this forni of hub because the configuration thereof is such that a thread could not be ent thereon suit able to receive the inch' nut and cap.

'in :he inodiiiration illustrated in Fig. 3, the couiifuraion ot' the bearing 3U is also such 'that a nread could not be out thereon suitable to receive the loch nut and the cap. in this 'term ot' iula'icatfu, an externaily threaded sleeve I l of iarger diameter than that ui' the bearing is siipped over the end oi' the bearing and lured thereto by screws Irj. Holten iabliitt-inetai 33, is then poured into the spares l'i-,iand 35 between the hub and the. sleeve and when the Babbitt metal burdens the sleeve issiilidly mounted thereh v on the hub. The lock nut 19 and cap 20 sei-en' on the f xternally threaded sleever 31.

i claim i t. in combination with a, hub, a cap screwin Lr on the end of the huh, and a lock nut having-an annular flange on the rear thereof screwing on the hul) against said cap to lock said cap in the desired position on said hub, and an annular flange Ion the rear of Said lock nut preventing dirt entering the threads between said hub and said cap.

2. In combination with a hub, a cap screwing on the end of said huh, a lock nut screwing ou said huh against said Cap to lock said cap in the desired position on said hub said lock nut having means for preventing the entrance of dirt into the threads between said hub and said ca p.

2S. In combination with a hub, a lubricating device zuljustabl)r mounted on the end of said hub, said hub and said lubricating device beingr adapted to be filled with n lubricant, said lubricating devicel bein adapted to be adjusted by hand on said hn so as to force the lubricant through the hub, means for locking said lubricating device in adjusted position and to prevent dirt entering and interfering with the free operation l CHARLES H. BIGGIN. 

